// 
// Copyright (c) 2006-2009 Ben Motmans
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
// Author(s):
//    Ben Motmans <ben.motmans@gmail.com>
//

using System;
using System.Diagnostics;
using System.Collections.Generic;

namespace Anculus.Core
{
	internal abstract class AbstractDispatchContainer<T> : IDispatchContainer
	{
		protected T callback;

		protected AbstractDispatchContainer (T callback, bool isSynchronous)
		{
			Debug.Assert (callback != null, "callback == null");

			this.callback = callback;
			
			IsSynchronous = isSynchronous;
			Delay = RemainingDelay = 0;
		}

		protected AbstractDispatchContainer (T callback, bool isSynchronous, int delay, bool repeat)
		{
			Debug.Assert (callback != null, "callback == null");
			Debug.Assert (delay > 100, "delay <= 100");
			
			this.callback = callback;
			
			IsSynchronous = isSynchronous;
			Delay = RemainingDelay = delay;
			RepeatDelay = repeat;
		}


		public Exception Exception { get; protected internal set; }

		public bool IsSynchronous { get; protected internal set; }

		public bool IsTimed
		{
			get { return Delay > 0; }
		}

		public int Delay { get; set; }

		public int RemainingDelay { get; set; }

		public bool RepeatDelay { get; set; }

		public bool Execute ()
		{
			Log.Trace ();
			
			try {
				ExecuteCallback (callback);
				return true;
			} catch (Exception ex) {
				Exception = ex;
				return false;
			}
		}

		protected abstract void ExecuteCallback (T callback);

		public virtual int CompareTo (IDispatchContainer other)
		{
			return RemainingDelay.CompareTo (other.RemainingDelay);
		}
	}
}
